The most powerful and flexible interface ever made. Period.
This thing is awesome!!! There is simply nothing else that can do with this thing does. It is flawless, well thought out, works like a charm and is easy to set up. I am using it as the front end for my new guitar rig. I have an iPad 3rd gen, iPhone 5S, and an iPhone 4s connected to it. My guitar is connected to the 1/4" input on the front of this unit. From there it feeds my iPad which is running BiasFX software for my guitar patches. On the iPhone 5s I am running the MidiGuitar app to drive various synthesizer apps from the guitar. On the iPhone 4s, I run other synthesizer apps, drum machine or groove apps, or can playback music tracks. I use the MIDI din jacks on the iConnectAudio to connect my Roland FC-300 pedalboard which controls my virtual rigs in BiasFX. I also have a USB Hub connected so I can connect USB Midi keyboard controllers when needed. I use the internal mixer on the iConnectAudio to set up different mixes: 1) outputs 3&4 to feed a stereo signal to my ISP Stealth power amp which drives a Fender stereo guitar cabinet, 2) outputs 1&2 feed balanced XLR lines to the front of house mixing desk, and 3) the headphone outputs are also available as a separate mix to feed a monitor system as needed. Connect a computer and you have digital feeds right into your DAW. Plus I have 3 analog inputs for other mics, keyboards, or whatever. That is a lot of power and flexibility in a 1U half rack unit!! Combined with my JTV Variax, I now have the smallest, lightest and most powerful guitar rig I've ever owned. Not only that, the "feel" and sound are amazing.